From 5LINX.com:"This past week, ChromaDex released the results of their first human clinical study on NIAGEN. The results of the study confirmed their initial findings; a single dose of NIAGEN resulted in significant increases in an important cellular enzyme called NAD+." To view the full press release from Chromadex, click here.

For me, this verifies something that I already knew: these products are absolutely phenomenal. I personally began taking Hi5 Edge about 8 months ago and the effects have been phenomenal--namely having more endurance and feeling "sharper".

Check out the benefits of NIAGEN which is the active ingredient in Hi5 Edge: